654
FNUS55 KRIW 140919
FWFRIW
FIRE WEATHER PLANNING FORECAST FOR WESTERN AND CENTRAL WYOMING
NATIONAL WEATHER SERVICE RIVERTON WY
319 AM MDT MON SEP 14 2026
DISCUSSION
...YELLOWSTONE NP AND TETON DISPATCH AREAS (INCLUDES FIRE WEATHER
ZONES 140...414...415...AND 416)...
ANY SHOWERS WILL END BEFORE SUNRISE, WITH A DRY AND COOLER DAY
FOR MOST LOCATIONS. THERE WILL BE A GUSTY BREEZE AT TIMES,
ESPECIALLY IN THE AFTERNOON. HOWEVER, RELATIVE HUMIDITY SHOULD
REMAIN ABOVE CRITICAL LEVELS. THERE WILL BE AREAS OF ELEVATED
FIRE WEATHER THIS AFTERNOON. MIXING AND SMOKE DISPERSAL WILL
BE GOOD TO VERY GOOD IN THE AFTERNOON.
..CODY DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 275...276
282...283...285...286...287...288...AND 289)...
***RED FLAG WARNING FOR ZONES 283 AND 289 FROM 12 PM TO 8 PM
TODAY***
ANY SHOWERS SHOULD END AROUND SUNRISE. THE REST OF THE DAY WILL
BE COOLER WITH A GUSTY TO STRONG WIND AT TIMES, ESPECIALLY IN
THE SOUTHERN ZONES. RELATIVE HUMIDITY WILL FALL TO UNDER 15
PERCENT AT TIMES IN ZONES 283 AND 289, BRINGING CRITICAL FIRE
WEATHER THIS AFTERNOON. ELSEWHERE, RELATIVE HUMIDITY SHOULD
REMAIN ABOVE 15 PERCENT. ELEVATED FIRE WEATHER IS STILL LIKELY
IN THE AFTERNOON THOUGH. MIXING AND SMOKE DISPERSAL WILL BE
GENERALLY GOOD TO EXCELLENT.
..CASPER DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 277...278
279...280...281...285...289...AND 300)...
***RED FLAG WARNING FOR ZONES 279...280...289 AND 300 FROM 12
PM TO 8 PM TODAY***
ANY SHOWERS SHOULD END AROUND SUNRISE. THE REST OF THE DAY WILL
BE COOLER WITH A GUSTY TO STRONG WIND AT TIMES, ESPECIALLY FROM
NATRONA COUNTY AND SOUTHWARD. RELATIVE HUMIDITY WILL FALL TO
UNDER 15 PERCENT AT TIMES IN NATRONA, EASTERN FREMONT AND SOUTHERN
SWEETWATER COUNTIES, BRINGING CRITICAL FIRE WEATHER THIS AFTERNOON.
ELSEWHERE, RELATIVE HUMIDITY SHOULD REMAIN ABOVE 15 PERCENT.
ELEVATED FIRE WEATHER IS STILL LIKELY IN THE AFTERNOON THOUGH.
MIXING AND SMOKE DISPERSAL WILL BE GENERALLY GOOD TO EXCELLENT.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
WYZ280-151130-
NATRONA COUNTY/CASPER BLM-
INCLUDING THE CITIES OF CASPER AND MIDWEST
319 AM MDT MON SEP 14 2026
...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING...
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....70-75.
24 HR TREND......12 DEGREES COOLER.
MIN HUMIDITY........12-18 PERCENT.
24 HR TREND......6 PERCENT DRIER.
20-FOOT WINDS.......BREEZY. WEST WINDS 20 TO 25 MPH WITH GUSTS TO
AROUND 40 MPH.
RIDGE TOP WINDS.....WEST AROUND 25 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 25 TO 30 MPH.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 1200, THEN 5800-7800 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 1200, THEN EXCELLENT.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....39-44.
24 HR TREND......18 DEGREES COOLER.
MAX HUMIDITY........57-63 PERCENT.
24 HR TREND......11 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 15 MPH UNTIL 2100, THEN
NORTHEAST UNTIL 0300, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH. GUSTS UP TO 30 MPH.
RIDGE TOP WINDS.....NORTH AROUND 20 MPH UNTIL 2400, THEN EAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH AROUND 20 MPH UNTIL 2400, THEN EAST.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....71-76.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........23-29 PERCENT.
24 HR TREND......11 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
SOUTHEAST AROUND 10 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....EAST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN SOUTH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 3600-5600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
EVENING. LOWS AROUND 50. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 70S.
NORTH WINDS AROUND 10 MPH.
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S. SOUTH
WINDS AROUND 10 MPH.
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 70S. WEST
WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
WYZ283-151130-
UPPER WIND RIVER BASIN/WIND RIVER BASIN-
INCLUDING THE CITIES OF CROWHEART, LANDER, RIVERTON, AND SHOSHONI
319 AM MDT MON SEP 14 2026
...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING...
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....66-71.
24 HR TREND......11 DEGREES COOLER.
MIN HUMIDITY........17-23 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......NORTHWEST WINDS 15 TO 20 MPH WITH GUSTS TO
AROUND 40 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 20 TO 25 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 5400-7400 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN VERY GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....37-42.
24 HR TREND......11 DEGREES COOLER.
MAX HUMIDITY........60-66 PERCENT.
24 HR TREND......2 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
30 MPH UNTIL 2400, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH UNTIL 0300, THEN EAST AROUND 10 MPH AND
GUSTY.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN NORTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN EAST.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....68-73.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........22-28 PERCENT.
24 HR TREND......6 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN EAST
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....EAST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......600-2600 FT AGL UNTIL 1200, THEN 3600-5600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHWEST
WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS. LOWS IN THE UPPER
40S. HIGHS IN THE MID 70S. NORTHEAST WINDS AROUND 10 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID
70S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 70S. WINDS
GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
WYZ285-151130-
SOUTH BIGHORN MOUNTAINS-
319 AM MDT MON SEP 14 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......15 DEGREES COOLER.
MIN HUMIDITY........18-24 PERCENT.
24 HR TREND......3 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 20 MPH WITH GUSTS TO AROUND
40 MPH.
RIDGE TOP WINDS.....WEST AROUND 25 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 25 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 4600-6400 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN VERY GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....37-42.
24 HR TREND......12 DEGREES COOLER.
MAX HUMIDITY........60-66 PERCENT.
24 HR TREND......6 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
30 MPH UNTIL 2400, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
SOUTHWEST.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....64-69.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........23-29 PERCENT.
24 HR TREND......5 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
SOUTHEAST 10 TO 15 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 3200-5200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. LOWS IN THE
UPPER 40S. HIGHS IN THE UPPER 60S. NORTHEAST WINDS AROUND 10 MPH.
THURSDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS AROUND 70. SOUTH
WINDS AROUND 10 MPH.
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. WEST
WINDS AROUND 10 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE
MID 60S.
WYZ281-151130-
JOHNSON COUNTY/CASPER BLM-
INCLUDING THE CITIES OF BUFFALO AND KAYCEE
319 AM MDT MON SEP 14 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....64-69.
24 HR TREND......14 DEGREES COOLER.
MIN HUMIDITY........19-25 PERCENT.
24 HR TREND......2 PERCENT DRIER.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 35 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST 20 TO 25 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 5600-7600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN VERY GOOD.
TONIGHT
SKY/WEATHER.........CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....39-44.
24 HR TREND......13 DEGREES COOLER.
MAX HUMIDITY........61-67 PERCENT.
24 HR TREND......11 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTH WINDS AROUND 20 MPH WITH GUSTS TO AROUND
40 MPH UNTIL 2400, THEN AROUND 10 MPH WITH
GUSTS TO AROUND 30 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTH AROUND 25 MPH UNTIL 2400, THEN NORTHWEST
AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH AROUND 25 MPH UNTIL 2400, THEN NORTHWEST
AROUND 10 MPH.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 2400, THEN 400-1000 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....66-71.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........23-29 PERCENT.
24 HR TREND......3 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
SOUTHEAST 10 TO 15 MPH. GUSTS UP TO 30 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHEAST
AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN AROUND 20
MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 4000-6000 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50. SOUTH WINDS
AROUND 10 MPH.
WEDNESDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. LOWS IN THE
UPPER 40S. HIGHS IN THE MID 70S. NORTH WINDS AROUND 10 MPH.
THURSDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.
SOUTH WINDS AROUND 10 MPH.
FRIDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S.
NORTHWEST WINDS AROUND 10 MPH.
SATURDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER
70S.
SUNDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 70S.
WYZ282-151130-
SOUTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF TEN SLEEP, THERMOPOLIS, AND WORLAND
319 AM MDT MON SEP 14 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....62-67.
24 HR TREND......16 DEGREES COOLER.
MIN HUMIDITY........19-25 PERCENT.
24 HR TREND......6 PERCENT WETTER.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 25 MPH.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 1200, THEN 5800-7800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....37-42.
24 HR TREND......11 DEGREES COOLER.
MAX HUMIDITY........58-64 PERCENT.
24 HR TREND......6 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTH WINDS 10 TO 15 MPH UNTIL 2400, THEN WEST
UNTIL 0300, THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH.
GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN WEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN WEST.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....67-72.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........19-25 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHEAST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 3800-5400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. WINDS
GENERALLY LESS THAN 10 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE
MID 70S. WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE
UPPER 70S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 70S. WINDS
GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
WYZ275-151130-
NORTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF GREYBULL, LOVELL, AND POWELL
319 AM MDT MON SEP 14 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....59-64.
24 HR TREND......11 DEGREES COOLER.
MIN HUMIDITY........22-28 PERCENT.
24 HR TREND......2 PERCENT DRIER.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 15 MPH WITH GUSTS TO
AROUND 30 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 20 TO 25 MPH.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 1200, THEN 6600-8600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN VERY GOOD TO
EXCELLENT.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....36-41.
24 HR TREND......10 DEGREES COOLER.
MAX HUMIDITY........61-67 PERCENT.
24 HR TREND......UNCHANGED.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTH WINDS 15 TO 20 MPH WITH GUSTS TO AROUND
30 MPH UNTIL 2400, THEN NORTHWEST AROUND 10 MPH
AND GUSTY UNTIL 0300, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTH AROUND 20 MPH UNTIL 2400, THEN WEST
AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH AROUND 20 MPH UNTIL 2400, THEN NORTHWEST
AROUND 10 MPH.
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....63-68.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........18-24 PERCENT.
24 HR TREND......1 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
SOUTHEAST AROUND 10 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....SOUTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 3800-4800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. WINDS
GENERALLY LESS THAN 10 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE
LOWER 70S. NORTHWEST WINDS AROUND 10 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE
UPPER 70S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 70S. WINDS
GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
WYZ276-151130-
CODY FOOTHILLS-
INCLUDING THE CITIES OF CLARK, CODY, AND MEETEETSE
319 AM MDT MON SEP 14 2026
..HIGH WIND WARNING IN EFFECT UNTIL 2 PM MDT THIS AFTERNOON
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....62-67.
24 HR TREND......9 DEGREES COOLER.
MIN HUMIDITY........26-32 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......BREEZY. WEST WINDS AROUND 15 MPH UNTIL 0900,
THEN 20 TO 25 MPH. GUSTS UP TO 45 MPH.
RIDGE TOP WINDS.....WEST AROUND 25 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 25 TO 30 MPH.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 1200, THEN 5600-7600 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 1200, THEN VERY GOOD TO EXCELLENT.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....38-43.
24 HR TREND......8 DEGREES COOLER.
MAX HUMIDITY........55-61 PERCENT.
24 HR TREND......4 PERCENT WETTER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
SOUTHWEST.
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....65-70.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........25-31 PERCENT.
24 HR TREND......1 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
SOUTHEAST 10 TO 15 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHEAST
AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN AROUND 20
MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 3800-5800 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. WINDS
GENERALLY LESS THAN 10 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE MID
60S. NORTHWEST WINDS AROUND 10 MPH.
THURSDAY THROUGH FRIDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS 47 TO 52. HIGHS 69 TO
74. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S.
SUNDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 70.
WYZ287-151130-
OWL CREEK MOUNTAINS-
319 AM MDT MON SEP 14 2026
TODAY
SKY/WEATHER.........SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....61-66.
24 HR TREND......12 DEGREES COOLER.
MIN HUMIDITY........19-25 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......WEST WINDS 15 TO 20 MPH WITH GUSTS TO AROUND 35
MPH UNTIL 1200, THEN NORTH WITH GUSTS TO AROUND
25 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 20 TO 25 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 5000-7000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....37-42.
24 HR TREND......10 DEGREES COOLER.
MAX HUMIDITY........54-60 PERCENT.
24 HR TREND......2 PERCENT WETTER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......NORTH WINDS 10 TO 15 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 25
MPH.
RIDGE TOP WINDS.....NORTH AROUND 20 MPH UNTIL 2400, THEN WEST
AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH AROUND 20 MPH UNTIL 2400, THEN NORTHWEST
AROUND 10 MPH.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY
SKY/WEATHER.........SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....63-68.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........23-29 PERCENT.
24 HR TREND......2 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN SOUTH
10 TO 15 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.
MIXING HEIGHT.......600-2600 FT AGL UNTIL 1200, THEN 2800-4600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. WINDS
GENERALLY LESS THAN 10 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE
UPPER 60S. WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. WINDS
GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
WYZ286-151130-
ABSAROKA MOUNTAINS/NORTH SHOSHONE NF-
INCLUDING THE CITY OF PAHASKA
319 AM MDT MON SEP 14 2026
..HIGH WIND WARNING IN EFFECT UNTIL 2 PM MDT THIS AFTERNOON
TODAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....52-57.
24 HR TREND......16 DEGREES COOLER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......3 PERCENT WETTER.
20-FOOT WINDS.......BREEZY. WEST WINDS AROUND 25 MPH WITH GUSTS TO
AROUND 50 MPH.
RIDGE TOP WINDS.....WEST AROUND 30 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 30 TO 35 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 3800-5600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN VERY GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....32-37.
24 HR TREND......5 DEGREES COOLER.
MAX HUMIDITY........68-74 PERCENT.
24 HR TREND......9 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 35 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 2400, THEN SOUTHWEST.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....58-63.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........26-32 PERCENT.
24 HR TREND......5 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN SOUTH
10 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN SOUTH
AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN AROUND
20 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 5200-7200 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40. WINDS GENERALLY
LESS THAN 10 MPH.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY THROUGH FRIDAY
PARTLY CLOUDY WITH SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 39 TO 44. HIGHS 59 TO 64.
WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 50S.
SUNDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 50S.
WYZ140-151130-
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF LAKE, MAMMOTH, AND OLD FAITHFUL
319 AM MDT MON SEP 14 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....52-57.
24 HR TREND......14 DEGREES COOLER.
MIN HUMIDITY........34-40 PERCENT.
24 HR TREND......6 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH WITH GUSTS TO AROUND
35 MPH.
RIDGE TOP WINDS.....WEST AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 20 TO 25 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 4600-6200 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN VERY GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....27-32.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........74-80 PERCENT.
24 HR TREND......3 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 2100, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 2400, THEN
SOUTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 2400, THEN SOUTH.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....61-66.
24 HR TREND......9 DEGREES WARMER.
MIN HUMIDITY........24-30 PERCENT.
24 HR TREND......11 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST AROUND 10 MPH WITH GUSTS TO AROUND 30
MPH.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST
AROUND 20 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 5600-7600 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. WINDS
GENERALLY LESS THAN 10 MPH.
WEDNESDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. LOWS IN THE
UPPER 30S. HIGHS IN THE MID 60S. WINDS GENERALLY LESS THAN
10 MPH.
THURSDAY
PARTLY CLOUDY WITH SHOWERS LIKELY AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S.
WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE UPPER 50S.
WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 30S. HIGHS IN THE
UPPER 50S.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 60.
WYZ415-151130-
NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP-
INCLUDING THE CITIES OF JACKSON AND MORAN
319 AM MDT MON SEP 14 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....51-56.
24 HR TREND......16 DEGREES COOLER.
MIN HUMIDITY........37-43 PERCENT.
24 HR TREND......5 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 35
MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 20 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 4000-5600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....28-33.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........71-77 PERCENT.
24 HR TREND......11 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 2100, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 2400, THEN EAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 2400, THEN
SOUTHEAST.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....62-67.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........25-31 PERCENT.
24 HR TREND......9 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST AROUND 10 MPH WITH GUSTS TO AROUND 30
MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN
SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST
AROUND 20 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 5800-7800 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. WINDS
GENERALLY LESS THAN 10 MPH.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE MID 60S. WINDS
GENERALLY LESS THAN 10 MPH.
THURSDAY
PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 30S. HIGHS AROUND 60. WINDS GENERALLY LESS THAN
10 MPH.
SATURDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 50S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
WYZ416-151130-
WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF-
319 AM MDT MON SEP 14 2026
TODAY
SKY/WEATHER.........SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....51-56.
24 HR TREND......15 DEGREES COOLER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......3 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH WITH GUSTS TO AROUND
35 MPH.
RIDGE TOP WINDS.....WEST AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 20 TO 25 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 3600-5400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....28-33.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........65-71 PERCENT.
24 HR TREND......18 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
30 MPH UNTIL 2100, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 2400, THEN EAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
SOUTHEAST.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....57-62.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........30-36 PERCENT.
24 HR TREND......1 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN SOUTH
10 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST
AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST
AROUND 20 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 5200-7200 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
EVENING, THEN CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER
30S. WINDS GENERALLY LESS THAN 10 MPH.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS, SLIGHT CHANCE OF
THUNDERSTORMS AND SNOW SHOWERS. LOWS IN THE UPPER 30S. HIGHS IN
THE LOWER 60S. SOUTHEAST WINDS AROUND 10 MPH.
THURSDAY
PARTLY CLOUDY WITH SHOWERS LIKELY WITH POSSIBLE
THUNDERSTORMS AND SNOW SHOWERS. LOWS IN THE UPPER 30S. HIGHS IN
THE UPPER 50S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS
IN THE MID 30S. HIGHS IN THE UPPER 50S. WINDS GENERALLY LESS THAN
10 MPH.
SATURDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 30S. HIGHS IN THE MID 50S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S.
WYZ288-151130-
EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF-
INCLUDING THE CITIES OF DUBOIS AND SOUTH PASS
319 AM MDT MON SEP 14 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....56-61.
24 HR TREND......13 DEGREES COOLER.
MIN HUMIDITY........27-33 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......BREEZY. WEST WINDS 20 TO 25 MPH. GUSTS UP TO 55
MPH UNTIL 1200, THEN 45 MPH.
RIDGE TOP WINDS.....WEST AROUND 30 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 30 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 3400-5000 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN VERY GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....33-38.
24 HR TREND......7 DEGREES COOLER.
MAX HUMIDITY........54-60 PERCENT.
24 HR TREND......11 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 35 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH UNTIL 2400, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
SOUTHEAST.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....61-66.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........28-34 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST 10 TO 15 MPH WITH GUSTS TO AROUND 30
MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN AROUND
20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN AROUND
20 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 5200-7200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 40S. SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS, SNOW SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN
THE MID 60S. SOUTHWEST WINDS AROUND 10 MPH.
THURSDAY
PARTLY CLOUDY WITH SHOWERS LIKELY, SLIGHT CHANCE OF
THUNDERSTORMS AND SNOW SHOWERS. LOWS IN THE LOWER 40S. HIGHS IN
THE LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 60S.
WEST WINDS AROUND 10 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS 58 TO 63.
WYZ414-151130-
SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF-
INCLUDING THE CITY OF AFTON
319 AM MDT MON SEP 14 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....52-57.
24 HR TREND......15 DEGREES COOLER.
MIN HUMIDITY........27-33 PERCENT.
24 HR TREND......2 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH. GUSTS UP TO 40 MPH
UNTIL 1200, THEN 30 MPH.
RIDGE TOP WINDS.....WEST AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 20 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 3600-5400 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....27-32.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........70-76 PERCENT.
24 HR TREND......11 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
SOUTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
SOUTHEAST.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....62-67.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........22-28 PERCENT.
24 HR TREND......5 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST 10 TO 15 MPH WITH GUSTS TO AROUND 30
MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN
SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST
AROUND 20 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 6000-8000 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE LOWER 40S.
WINDS GENERALLY LESS THAN 10 MPH.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S.
SOUTHEAST WINDS AROUND 10 MPH.
THURSDAY
PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE MID 60S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE LOWER 60S. WINDS
GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE LOWER 60S.
SUNDAY
SUNNY. HIGHS IN THE MID 60S.
WYZ278-151130-
UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM-
INCLUDING THE CITIES OF BIG PINEY, FARSON, AND PINEDALE
319 AM MDT MON SEP 14 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....57-62.
24 HR TREND......13 DEGREES COOLER.
MIN HUMIDITY........21-27 PERCENT.
24 HR TREND......2 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 30
MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 4600-6600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....29-34.
24 HR TREND......7 DEGREES COOLER.
MAX HUMIDITY........68-74 PERCENT.
24 HR TREND......1 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
NORTHEAST.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....64-69.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........20-26 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN SOUTH
AROUND 10 MPH WITH GUSTS TO AROUND 25 MPH.
RIDGE TOP WINDS.....EAST AROUND 10 MPH UNTIL 1200, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN
SOUTHWEST.
MIXING HEIGHT.......600-2600 FT AGL UNTIL 1200, THEN 5000-7000 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE UPPER 30S. WINDS
GENERALLY LESS THAN 10 MPH.
WEDNESDAY THROUGH THURSDAY
PARTLY CLOUDY WITH CHANCE OF
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS 37 TO 42. HIGHS
68 TO 73. SOUTH WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 30S. HIGHS IN THE MID 60S.
SUNDAY
SUNNY. HIGHS IN THE UPPER 60S.
WYZ277-151130-
LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS-
INCLUDING THE CITIES OF EVANSTON, FORT BRIDGER, AND KEMMERER
319 AM MDT MON SEP 14 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....59-64.
24 HR TREND......12 DEGREES COOLER.
MIN HUMIDITY........16-22 PERCENT.
24 HR TREND......6 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 15 TO 20 MPH WITH GUSTS TO AROUND 30
MPH.
RIDGE TOP WINDS.....WEST AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 20 TO 25 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 4000-6000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....29-34.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........64-70 PERCENT.
24 HR TREND......UNCHANGED.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 15 MPH WITH GUSTS TO
AROUND 25 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
NORTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
NORTHEAST.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....67-72.
24 HR TREND......9 DEGREES WARMER.
MIN HUMIDITY........21-27 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST 10 TO 15 MPH WITH GUSTS TO AROUND 30
MPH.
RIDGE TOP WINDS.....EAST AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....EAST AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST
AROUND 20 MPH.
MIXING HEIGHT.......400-2400 FT AGL UNTIL 1200, THEN 5200-7200 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
NOT AS COOL. PARTLY CLOUDY. CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE
LOWER 40S. WINDS GENERALLY LESS THAN 10 MPH.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS AROUND 40. HIGHS AROUND 70. WINDS GENERALLY
LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE UPPER 60S. WINDS
GENERALLY LESS THAN 10 MPH.
SATURDAY THROUGH SUNDAY
CLEAR. LOWS IN THE MID 30S. HIGHS
66 TO 71.
WYZ279-151130-
SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA-
INCLUDING THE CITIES OF GREEN RIVER, ROCK SPRINGS, AND WAMSUTTER
319 AM MDT MON SEP 14 2026
...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING...
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....65-70.
24 HR TREND......12 DEGREES COOLER.
MIN HUMIDITY........17-23 PERCENT.
24 HR TREND......5 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 15 TO 20 MPH WITH GUSTS TO AROUND 40
MPH.
RIDGE TOP WINDS.....WEST 20 TO 25 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 20 MPH UNTIL 1200, THEN AROUND 30
MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 4400-6400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....38-43.
24 HR TREND......8 DEGREES COOLER.
MAX HUMIDITY........49-55 PERCENT.
24 HR TREND......16 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 35 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN NORTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
NORTHEAST.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....68-73.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......13 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST 10 TO 15 MPH WITH GUSTS TO AROUND 30
MPH.
RIDGE TOP WINDS.....EAST AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST
AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN
SOUTHWEST AROUND 20 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 5800-7800 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF SHOWERS
AFTER MIDNIGHT. LOWS IN THE UPPER 40S. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 70S.
SOUTH WINDS AROUND 10 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. SOUTH
WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS AROUND 40. HIGHS AROUND 70. SOUTHWEST WINDS
AROUND 10 MPH.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 70.
WYZ289-151130-
GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS-
INCLUDING THE CITY OF JEFFREY CITY
319 AM MDT MON SEP 14 2026
...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING...
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....64-69.
24 HR TREND......14 DEGREES COOLER.
MIN HUMIDITY........12-18 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......WINDY. WEST WINDS 20 TO 25 MPH UNTIL 1200, THEN
25 TO 30 MPH. GUSTS UP TO 50 MPH.
RIDGE TOP WINDS.....WEST AROUND 30 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 30 TO 35 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 4600-6600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN VERY GOOD TO
EXCELLENT.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....37-42.
24 HR TREND......13 DEGREES COOLER.
MAX HUMIDITY........55-61 PERCENT.
24 HR TREND......11 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH WITH GUSTS TO AROUND
40 MPH UNTIL 2100, THEN NORTH WITH GUSTS TO
AROUND 40 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
NORTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH UNTIL 2400, THEN
NORTHEAST.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....68-73.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........24-30 PERCENT.
24 HR TREND......9 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN SOUTH
10 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
RIDGE TOP WINDS.....EAST AROUND 10 MPH UNTIL 1200, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN
SOUTHWEST AROUND 20 MPH.
MIXING HEIGHT.......600-2600 FT AGL UNTIL 1200, THEN 5400-7400 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 40S. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 70S. SOUTH
WINDS AROUND 10 MPH.
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. SOUTH
WINDS AROUND 10 MPH.
FRIDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS AROUND 70. SOUTHWEST
WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
WYZ300-151130-
CASPER MOUNTAIN-
319 AM MDT MON SEP 14 2026
...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING...
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....65-70.
24 HR TREND......12 DEGREES COOLER.
MIN HUMIDITY........14-20 PERCENT.
24 HR TREND......10 PERCENT DRIER.
20-FOOT WINDS.......BREEZY. WEST WINDS AROUND 25 MPH WITH GUSTS TO
AROUND 45 MPH.
RIDGE TOP WINDS.....WEST AROUND 30 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 30 TO 35 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 5600-7200 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 1200, THEN EXCELLENT.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....38-43.
24 HR TREND......17 DEGREES COOLER.
MAX HUMIDITY........51-57 PERCENT.
24 HR TREND......16 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH WITH GUSTS TO AROUND
35 MPH UNTIL 2100, THEN NORTHEAST WITH GUSTS TO
AROUND 35 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN EAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH UNTIL 2400, THEN EAST.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....66-71.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......16 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN SOUTH
AROUND 10 MPH UNTIL 1500, THEN SOUTHWEST. GUSTS
UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH UNTIL 1200, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH UNTIL 1200, THEN
SOUTHWEST.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 5400-7400 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 40S.
SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S.
SOUTH WINDS AROUND 10 MPH.
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.
SOUTH WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S.
SOUTHWEST WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
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